package com.mianshi;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Scanner;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;

public class Jd {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int q = in.nextInt();
//        int[][] map = new int[n][n];
        final ScheduledExecutorService scheduledExecutorService =
                Executors.newScheduledThreadPool(2);
        Map<Character,Integer> map = new HashMap<>();
        final HashSet<Object> objects = new HashSet<>();
        objects.add(2);
    }
}
